<template>
  <div>
    <!-- 面包屑导航栏 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <!-- 添加商品提示框 -->
      <el-alert title="添加商品信息" type="info" center show-icon :closable="false"></el-alert>
      <!-- 添加商品步骤 -->
      <el-steps align-center :active="active-0" finish-status="success">
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>
      <el-form
        label-position="top"
        :model="addGoodInfo"
        :rules="addGoodsrules"
        ref="addGoodsRef"
        label-width="100px"
      >
        <el-tabs
          tab-position="left"
          v-model="active"
          :before-leave="beforeTabLeave"
          @tab-click="tableClicked"
        >
          <el-tab-pane label="基本信息" name="0">
            <el-form-item label="商品名称" prop="goods_name">
              <el-input v-model="addGoodInfo.goods_name"></el-input>
            </el-form-item>
            <el-form-item label="商品重量" prop="goods_weight">
              <el-input type="number" v-model="addGoodInfo.goods_weight"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input type="number" v-model="addGoodInfo.goods_number"></el-input>
            </el-form-item>
            <el-form-item label="商品价格" prop="goods_price">
              <el-input type="number" v-model="addGoodInfo.goods_price"></el-input>
            </el-form-item>
            <el-form-item label="商品分类">
              <el-cascader
                clearable
                v-model="addGoodInfo.goods_cat"
                :options="categoryList"
                :props="cateProps"
                @change="handleChange"
              ></el-cascader>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品参数" name="1">
            <el-form-item
              v-for="item in manyParamsList"
              :key="item.attr_id"
              :label="item.attr_name"
            >
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox v-for="(item1,i) in item.attr_vals" :key="i" :label="item1" border></el-checkbox>
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品属性" name="2">
            <el-form-item
              v-for="item in onlyParamsList"
              :key="item.attr_id"
              :label="item.attr_name"
            >
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox v-for="(item1,i) in item.attr_vals" :key="i" :label="item1" border></el-checkbox>
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane label="商品图片" name="3">
            <el-upload
              action="http://127.0.0.1:8888/api/private/v1/upload"
              :headers="urlheader"
              :on-preview="handlePreview"
              :on-remove="handleRemove"
              :on-success="getPicUrlw"
              list-type="picture"
            >
              <el-button size="small" type="primary">点击上传</el-button>
            </el-upload>
          </el-tab-pane>
          <el-tab-pane label="商品内容" name="4">
            <quill-editor v-model="addGoodInfo.goods_introduce"></quill-editor>

            <el-button class="zzz" type="primary" @click="addGood">添加商品</el-button>
          </el-tab-pane>
        </el-tabs>
      </el-form>
    </el-card>
    <!-- 预览图片弹出框 -->
    <el-dialog title="图片预览" :visible.sync="previewDialogVisible" width="50%">
      <img class="previewImg" :src="previewUrl" alt />
    </el-dialog>
  </div>
</template>
<script>
import _ from 'lodash'
export default {
  data() {
    return {
      active: "0",
      categoryList: [],
      cateProps: {
        value: "cat_id",
        label: "cat_name",
        children: "children",
        expandTrigger: "hover"
      },
      addGoodInfo: {
        goods_name: "111",
        goods_cat: "",
        goods_price:111,
        goods_number: 1,
        goods_weight: 1,
        goods_introduce: "",
        pics: [],
        attrs: []
      },
      urlheader: { authorization: window.sessionStorage.getItem("token") },
      // 当前动态参数列表
      manyParamsList: [],
      onlyParamsList: [],
      addGoodsrules: {
        goods_name: [
          { required: true, message: "请输入商品名称", trigger: "blur" }
        ],
        goods_weight: [
          { required: true, message: "请输入商品重量", trigger: "blur" }
        ],
        goods_number: [
          { required: true, message: "请输入商品数量", trigger: "blur" }
        ],
        goods_price: [
          { required: true, message: "请输入商品价格", trigger: "blur" }
        ],
        goods_category: [
          { required: true, message: "请输入商品价格", trigger: "blur" }
        ]
      },
      previewDialogVisible: false,
      previewUrl: ""
    };
  },
  methods: {
    //   获取商品分类列表
    async getCategoryList() {
      const { data: res } = await this.$http.get("categories");

      if (res.meta.status !== 200) {
        return this.$message.error("获取分类列表失败");
      }
      this.categoryList = res.data;
    },
    // 切换当前分类
    handleChange() {
      if (this.addGoodInfo.goods_cat.length !== 3) {
        this.addGoodInfo.goods_cat = [];
      }
    },
    beforeTabLeave(activeName, oldActiveName) {
      if (this.addGoodInfo.goods_cat.length !== 3) {
        return false;
      }
    },
    async tableClicked() {
      console.log(this.active);
      if (this.active == 1) {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          {
            params: { sel: "many" }
          }
        );
        if (res.meta.status !== 200) {
          return this.$message.error("获取动态参数失败");
        }
        res.data.forEach(item => {
          item.attr_vals = item.attr_vals ? item.attr_vals.split(",") : [];
        });
        console.log(res);
        this.manyParamsList = res.data;
      } else if (this.active == 2) {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          {
            params: { sel: "only" }
          }
        );
        if (res.meta.status !== 200) {
          return this.$message.error("获取动态参数失败");
        }
        res.data.forEach(item => {
          item.attr_vals = item.attr_vals ? item.attr_vals.split(",") : [];
        });
        this.onlyParamsList = res.data;
      }
    },
    //点击预览图片功能
    handlePreview(file) {
      console.log(file);
      this.previewUrl = file.response.data.url;
      this.previewDialogVisible = true;
    },
    // 移除图片的操作
    handleRemove(file) {
      const removePic = file.response.data.tmp_path;
      const index = this.addGoodInfo.pics.findIndex(x => {
        x.pic === removePic;
      });
      this.addGoodInfo.pics.splice(index, 1);
    },
    getPicUrlw(res) {
      console.log(res);
      if (res.meta.status !== 200) {
        return this.$message.error("上传图片失败");
      }
      const pic = { pic: res.data.tmp_path };
      this.addGoodInfo.pics.push(pic);
    },
    // 增加商品
    addGood(){
      this.$refs.addGoodsRef.validate(async item=>{
        if(!item){
          return this.$message.error("请填写必要表单项");
        }
        const form = _.cloneDeep(this.addGoodInfo);
        form.goods_cat = form.goods_cat.join(",")
        this.manyParamsList.forEach(item=>{
          const params = {"attr_id":item.attr_id,
          "attr_value":item.attr_vals.join(",")
          }
          this.addGoodInfo.attrs.push(params)
        })
        this.onlyParamsList.forEach(item=>{
          const params = {"attr_id":item.attr_id,
          "attr_value":item.attr_vals.join(",")
          }
          this.addGoodInfo.attrs.push(params)
        })
        form.attrs = this.addGoodInfo.attrs;
        console.log(form);
        
        const {data :res} = await this.$http.post('goods',form)
        console.log(res);
        
        if(res.meta.status!==201){return this.$message.error("添加商品失败")}
         this.$message.success("添加商品成功")
        this.$router.push('/goods')
        
      }) 

    }
  },
  created() {
    this.getCategoryList();
  },
  computed: {
    cateId() {
      if (this.addGoodInfo.goods_cat.length === 3) {
        return this.addGoodInfo.goods_cat[2];
      } else {
        return null;
      }
    }
  }
};
</script>
<style lang="less" scoped>
.zzz{
  margin-top: 15px  ;
}
.el-steps {
  margin: 15px 30px;
}
.el-step__title {
  font-size: 12px !important;
}
.previewImg {
  width: 100%;
}
</style>